<template>
    <div class="app-container">
        <!-- 顶部header区域 -->
         
        <mt-header fixed title="项目实战Vue项目">
            <span  slot="left" @click="goback" v-show="flag">
                 <mt-button icon="back">返回</mt-button>
            </span>
        </mt-header>

        <!-- 中间router-view区域 -->
        <transition>
            <router-view></router-view>
        </transition>
        

        <!-- 底部tabbar区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/cart">
				<span class="mui-icon-extra mui-icon-extra-cart mui-icon"><span class="mui-badge">{{$store.getters.getAllcount}}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>

<script>
export default {
    data(){
        return {
            flag:false
        }
    },
    created(){
        if(this.$route.path=='/home'){
            this.flag=false
        }else{
            this.flag=true;
        }
    },
    methods:{
        // 点击后退
        goback(){
            this.$router.go(-1);

        }
    },
    watch:{
        '$route.path':function(newVal){
            if(newVal=='/home'){
                this.flag=false
            }
            else{
                this.flag=true;
            }
        }
    }
}
</script>


<style lang="less" scoped>
*{
    padding: 0;
    margin: 0;
}
.mint-header.is-fixed{
    // 解决上滑动时，header被盖住的问题
    z-index: 99;
}
 .app-container{
     padding-top:40px; 
    /* 解决位移问题*/
     overflow-x: hidden;
     padding-bottom: 50px;
     position: relative;
}
.v-enter{
    opacity: 0;
    transform: translateX(100%);
}
/* 解决从右侧进，左侧消失*/
.v-leave-to{
    opacity: 0;
    transform: translateX(-100%);
    /* 解决内容网上飘的问题*/
    position: absolute;
}
.v-enter-active,.v-leave-active{
    transition: all 1s ease;
}
// 改类名，解决tabbar点击无法切换的问题
.mui-bar-tab .mui-tab-item1{
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
    
}
.mui-bar-tab .mui-tab-item1.mui-active {
    color: #007aff;
}
.mui-bar-tab .mui-tab-item1 .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item1 .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mui-bar{
    z-index: 99;
    height: 50px;
}
.mui-bar-tab{
    z-index: 99;
    // position: absolute;
    // bottom: 0;
}

</style>



